Listes faunistiques invertébrés
Le ruisseau de Létrade à Saint-Avit 04041755
- Télécharger la fiche IRSTEA xls / 26 ko
- Export SEEE csv / 6 ko
| Date prélèvement | 21/08/2014 |
|---|---|
| Méthode | Petit cours d'eau |
| IBG | 16.0 |
| GFI | 7 |
| Variété taxonomique | 33 |
| I2M2 | 0.5776 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 6.0 | dominant |
| Hydrophytes | 4.0 | marginal |
| Litieres | 1.0 | marginal |
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 63.0 | dominant |
| Blocs | 15.0 | dominant |
| Granulats | 0.0 | marginal |
| Helophytes | 5.0 | dominant |
| Vases | 0.0 | marginal |
| Sables | 1.0 | marginal |
| Algues | 0.0 | marginal |
| Dalles, argiles | 4.0 | marginal |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Pierres, galets | Moyenne | B |
| P2 | Helophytes | Nulle | B |
| P3 | Branchage, racines | Nulle | A |
| P4 | Bryophytes | Moyenne | B |
| P5 | Blocs | Moyenne | B |
| P6 | Hydrophytes | Moyenne | A |
| P7 | Pierres, galets | Rapide | C |
| P8 | Pierres, galets | Lente | C |
| P9 | Litieres | Nulle | A |
| P10 | Pierres, galets | Nulle | C |
| P11 | Sables | Nulle | A |
| P12 | Pierres, galets | Moyenne | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Ferrissia | 1030 | 5 | 3 | |
| Dicranota | 765 | 2 | 70 | 34 |
| Simuliidae | 801 | 54 | 707 | 203 |
| Chironomidae | 807 | 199 | 900 | 103 |
| Ceratopogonidae | 819 | 1 | 4 | |
| Pacifastacus | 872 | 3 | 4 | 2 |
| Gammarus | 892 | 2 | ||
| Hydracarina | 906 | 1 | ||
| Oligochaeta | 933 | 132 | 136 | 10 |
| Ancylus | 1028 | 2 | ||
| Gerris | 735 | 1 | 1 | |
| Sphaeriidae | 1042 | 2 | 1 | |
| Pisidium | 1043 | 1 | 2 | |
| Bryozoa | 1087 | 1 | 1 | |
| Prostoma | 3110 | 1 | ||
| Hemerodromiinae | 3202 | 2 | ||
| Copepoda | 3206 | 1 | 1 | 1 |
| Clinocerinae | 9813 | 1 | ||
| Physella | 19280 | 1 | ||
| Xironogiton | 23599 | 1 | ||
| Ecdyonurus | 421 | 4 | 3 | |
| Leuctra | 69 | 2 | 105 | 22 |
| Rhyacophila lato-sensu | 183 | 3 | 1 | |
| Ithytrichia | 198 | 1 | 2 | 1 |
| Hydropsyche | 212 | 56 | 9 | |
| Cheumatopsyche | 221 | 2 | ||
| Polycentropus | 231 | 20 | 21 | 2 |
| Psychomyia | 239 | 18 | 3 | |
| Goeridae | 286 | 1 | ||
| Baetis | 364 | 19 | 142 | 78 |
| Protonemura | 46 | 1 | 95 | |
| Heptagenia | 443 | 1 | ||
| Ephemerella ignita | 451 | 3 | ||
| Paraleptophlebia | 481 | 3 | 4 | |
| Ephemera | 502 | 16 | 1 | |
| Hydraena | 608 | 1 | ||
| Calopteryx | 650 | 12 | 4 | 3 |
| Platycnemis | 657 | 1 | ||
| Gomphus | 679 | 1 |